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OpenNSA is developed by Nordunet and is available here:
https://git.nordu.net/?p=opennsa.git;a=summary
T1 OpenNSA repository can be found here:
https://code.geant.net/stash/projects/CCS/repos/opennsa
GTS version of OpenNSA is a fork of Nordunet's made few years ago and some GTS specific features have been added. This version is available here:
https://gitlab.com/tamasv/opennsa-trunk
This version is now End-Of-Life and all GTS features is being merged to the stock OpenNSA of Nordunet which introduces some new features and improvements in the meantime.
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